Fans of the gothic soap opera Dark Shadows were saddened by the death last week of star Jonathan Frid, who played the vampire Barnabas Collins. This week’s featured sheet music does not speak of vampires or other shadowy figures. But its lyrical plea to “meet me in the shadows” is at once romantic and sinister, and the cover illustration of the spectral dancers awaiting you in the dark might encourage you to sit out this dance. For those in search of vampires, In the Muse does have plenty to offer.